12101013111 has 16 divisors (see below), whose sum is σ = 17775750528. Its totient is φ = 7261332000.

The previous prime is 12101013107. The next prime is 12101013143. The reversal of 12101013111 is 11131010121.

It is not a de Polignac number, because 12101013111 - 2² = 12101013107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101013611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1812001 + ... + 1818666.

It is an arithmetic number, because the mean of its divisors is an integer number (1110984408).

Almost surely, 2^12101013111 is an apocalyptic number.

12101013111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12101013111 is a deficient number, since it is larger than the sum of its proper divisors (5674737417).

12101013111 is a wasteful number, since it uses less digits than its factorization.

12101013111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3630782.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 12101013111 its reverse (11131010121), we get a palindrome (23232023232).

The spelling of 12101013111 in words is "twelve billion, one hundred one million, thirteen thousand, one hundred eleven".